The sky is blue as a result of Rayleigh scattering. Rayleigh scattering represents the high frequency of gas molecules hitting and absorbing blue light. As the horizon turns pale, the blue light has to pass through more ... More »

www.reference.com Science Earth Science Atmosphere

The sky appears blue because of the scattering of sunlight by atmospheric molecules, or Rayleigh scattering. Rayleigh scattering results in a blue sky because it is most noticeable at shorter wavelengths. More »

www.reference.com Science Earth Science

A science project that explains the blue color of the sky at certain times of the day can be done by projecting a beam of light from a flashlight or a projector through a transparent container, like a large beaker or a j... More »

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The sky appears blue because of the scattering of sunlight by atmospheric molecules, or Rayleigh scattering. Rayleigh scattering results in a blue sky because it is most noticeable at shorter wavelengths. More »

www.reference.com Science Earth Science

The southern lights, or the "aurora australis," are diffuse sheets of lights in the sky of the southern hemisphere. The aurora australis are the southern hemisphere’s counterpart to the northern lights, or aurora boreali... More »

www.reference.com Science Earth Science Atmosphere

On a clear day the sky is blue to deep blue. At dawn and dusk the stretch of sky nearest the sun changes to shades of red, orange and yellow. The color of the sky is primarily determined by the way air molecules scatter ... More »

The sky is a common term for Earth's atmosphere, which is approximately 60 miles thick, according to NASA. The atmosphere is composed of different levels, with the exosphere marking the boundary of space. According to Un... More »